| dc.creator | Uzcátegui-Varela, Juan Pablo | |
| dc.creator | Collazo-Contreras, Karen Dayana | |
| dc.creator | Guillén-Molina, Edilmer Antonio | |
| dc.date | 23 de agosto de 2019 | |
| dc.date | 26 de septiembre de 2019 | |
| dc.date | 2020-02-27T08:00:00Z | |
| dc.date.accessioned | 2022-10-13T14:26:06Z | |
| dc.date.available | 2022-10-13T14:26:06Z | |
| dc.identifier | https://ciencia.lasalle.edu.co/mv/vol1/iss39/9 | |
| dc.identifier | https://ciencia.lasalle.edu.co/cgi/viewcontent.cgi?article=1353&context=mv | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4169509 | |
| dc.description | Se empleó un diseño completamente al azar, distribuyendo 200 pollitos Cobb 500, con aspecto saludable, de un día de edad y peso promedio de 37.34 ± 0.44 g; en cinco grupos con cuatro réplicas de diez polluelos cada una. Durante los 42 días del experimento, las aves recibieron manejo zootécnico tradicional que incluyó dieta comercial isoproteíca (20 % proteína cruda) e isocalórica (3100 kilocaloría (kcal)/kilogramo (kg)). El día 15, la parvada recibió un programa de restricción alimenticia (PRA) según los tratamientos (T) = T0 = consumo ad libitum de alimento concentrado (AC) durante 24 horas (h), T1 = eliminación del AC durante 12 h (20:00-8:00), T2 = supresión de AC por 14 h (18:00-8:00), T3 = 16 h sin acceso a AC (16:00-8:00) y T4 = privación de AC durante 18 h (14:00 y 8:00). Después del día 30, las aves retomaron el libre consumo de AC. Se consideró la ganancia total de peso (GTP), la ganancia diaria de peso (GDP), el consumo de alimento (CA), el factor de conversión alimenticia (FCA), el rendimiento en canal (RC) y la mortalidad (M) como variables respuesta. El análisis estadístico reveló que el PRA no tuvo efecto significativo (p > 0.05) sobre los indicadores productivos evaluados en T0, T1, T2 y T3; sin embargo, el CA fue significativamente menor (p < 0.05) en T3 y T4 comparado con los demás tratamientos. Además, solamente el T4 mostró un FCA menor (p < 0.05) en comparación con los demás tratamientos. Se concluye que un PRA de 18 h durante los días 15 al 30 de edad, favorece los criterios de sostenibilidad al no impactar negativamente en la productividad de las aves | |
| dc.description | A fully random design was used to distribute 200 Cobb 500 chickens. They were one day old, looked healthy and had an average weight of 37.34 ± 0.44 g. It consisted in five groups with four replicas having 10 chickens each. During the 42 experimental days, the birds received a traditional zootechnical management including commercial isoproteic diet (20% raw protein) and an isocaloric diet (3,100 kilocalories (kcal)/kilogram (kg)). On day 15, the herd was subject to a feeding restriction program (PRA) according to these treatments (T): T0 ad libitum consumption of concentrated food (CF) for 24 hours (h), T1 removal of the CF for 12 h (20:00-8:00), T2 removal of AC for 14 h (18:00-8:00), T3 16 h with not access to the CF (16:00-8:00), and T4 lack of AC for 18 h (14:00 y 8:00). After day 30, the birds returned to the free consumption of CF. The total weight gain (TWG), daily weight gain (DWG), food consumption (FC), dietary conversion factor (DCF), channel performance (CP), and mortality (M) were taken as response variables. The statistical analysis showed that the PRA had a significant effect on the (P>0.05) on the production indicators evaluated in T0, T1, T2 and T3. However, the CF was significantly lower (p<0,05) in T3 and T4 as compared to the other treatments. In addition, only T4 showed a lower DCF (p<0,05) as compared to the other treatments. It is concluded that a PRA of 18 hours from 15 to 30 days of age favors the sustainability criteria as it does not impact negatively the bird productivity | |
| dc.description | O delineamento foi inteiramente aleatório, distribuindo 200 pintos Cobb 500, com aparência saudável, de um dia de idade e peso médio de 37,34 ± 0,44 g. em cinco grupos com quatro réplicas de dez pintainhos cada uma. Durante os 42 dias do experimento, as aves receberam manejo zootécnico tradicional que incluiu dieta comercial isoproteíca (20% proteína bruta) e isocalórica (3.100 quilocaloria (kcal)/quilograma (kg)). No dia 15, os filhotes receberam um programa de restrição alimentar (PRA) de acordo com os tratamentos (T): T0: consumo ad libitum de alimento concentrado (AC) durante 24 horas (h), T1: eliminação do AC durante 12 h (20:00-8:00), T2: supressão de AC por 14 h (18:00-8:00), T3: 16 h sem acesso a AC (16:00-8:00) e T4: privação de AC durante 18 h (14:00 e 8:00). Após o dia 30, as aves retomaram o consumo livre de AC. O ganho total de peso (GTP), ganho diário de peso (GDP), consumo de alimento (CA), fator de conversão alimentar (FCA), rendimento em carcaça (RC) e mortalidade (M) foram considerados como variáveis resposta. A análise estatística revelou que o PRA não teve efeito significativo (P>0.05) sobre os indicadores produtivos avaliados em T0, T1, T2 e T3; no entanto, o CA foi significativamente menor (p<0,05) em T3 e T4 comparado com os outros tratamentos. Além disso, só o T4 mostrou um FCA menor (p<0,05) em comparação com os outros tratamentos. Conclui-se que um PRA de 18 h durante os dias 15 a 30 de idade, favorece os critérios de sustentabilidade por não impactar negativamente na produtividade das aves | |
| dc.format | application/pdf | |
| dc.format | 85 - 97 | |
| dc.language | spa | |
| dc.publisher | Universidad de La Salle. Ediciones Unisalle | |
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| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.rights | Acceso abierto | |
| dc.rights | http://purl.org/coar/access_right/c_abf2 | |
| dc.subject | Crecimiento compensatorio | |
| dc.subject | eficiencia alimenticia | |
| dc.subject | pollos de engorde | |
| dc.subject | restricción alimenticia | |
| dc.subject | sostenibilidad | |
| dc.subject | compensatory growth, feeding efficiency, broilers, feeding restriction, sustainability | |
| dc.subject | Crescimento compensatório, eficiência alimentar, pintos de engorde, restrição alimentar, sustentabilidade | |
| dc.title | Evaluación del comportamiento productivo de pollos Cobb 500 sometidos a restricción alimenticia como estrategia sostenible de control nutricional | |
| dc.type | Artículo de investigación | |
| dc.identifier.doi | https://doi.org/10.19052/mv.vol1.iss39.9 | |
| dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
| dc.type.redcol | http://purl.org/redcol/resource_type/ART | |
| dc.type.content | Text | |
| dc.type.coarversion | Versión publicada | |
| dc.type.coarversion | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| dc.relation.citationstartpage | 85 | |
| dc.relation.citationendpage | 97 | |
| dc.identifier.instname | instname:Universidad de La Salle | |
| dc.identifier.reponame | reponame:Ciencia Unisalle | |
| dc.identifier.repo.url | repourl:https://ciencia.lasalle.edu.co/ | |
| dc.relation.ispartofcitationissue | 39 | |
| dc.relation.ispartofjournal | Revista de Medicina Veterinaria | |
| dc.title.translated | Evaluation of the Productive Behavior of Cobb 500 Chickens under Feeding Restrictions as a Nutritional Control Sustainable Strategy | |
| dc.title.translated | Avaliação do comportamento produtivo de pintos Cobb 500 submetidos a restrição alimentar como estratégia sustentável de controle nutricional | |